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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DERBY-2457) Use of column aliases in group by / having clauses can cause queries to fail
Date Tue, 13 May 2008 16:55:55 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bryan Pendleton resolved DERBY-2457.
------------------------------------

    Resolution: Invalid

I committed the additional test cases to the trunk as revision 655947.

Since we believe that the current behavior of Derby is correct
according to the SQL Standard, I'm resolving the issue as invalid.
(Would "won't fix" be more appropriate?)

> Use of column aliases in group by / having clauses can cause queries to fail
> ----------------------------------------------------------------------------
>
>                 Key: DERBY-2457
>                 URL: https://issues.apache.org/jira/browse/DERBY-2457
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.3.1.4
>            Reporter: Andrew McIntyre
>            Assignee: Bryan Pendleton
>            Priority: Minor
>         Attachments: 1624_repro.sql, additionalTests.diff
>
>
> Some use of column aliases in group by / having clauses can cause queries to fail with
error 42X04. The queries can sometimes be made to work by also aliasing the table or rewriting
the query to use a subselect. Attached is a simple sql script which reproduces the issue,
originally found as part of DERBY-1624.

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